Dec 2015 | THE DECEMBER ISSUE

Urban infrastructure investment is a hot topic not only because many regions are clamouring to have their infrastructure debt addressed but because urban investments reﬂect long term policy goals, especially with respect to climate mitigation. Not only are there a range of prescriptions for addressing climate change at the local level, but many of the decisions and investments we make in today’s cities have enduring impacts, and therefore act as commitments with large implications in the future. Underlying all of these investments in urban infrastructure is the basic layout of cities, which determines and reﬂects where people live and work.